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631675472 = 2444389119
BaseRepresentation
bin100101101001101…
…001101001010000
31122000121102211212
4211221221221100
52243202103342
6142402555252
721440103311
oct4551515120
91560542755
10631675472
112a462314a
12157668b28
13a0b3938c
145dc70608
153a6c8182
hex25a69a50

631675472 has 20 divisors (see below), whose sum is σ = 1226647680. Its totient is φ = 315121248.

The previous prime is 631675459. The next prime is 631675481. The reversal of 631675472 is 274576136.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37472 + ... + 51647.

It is an arithmetic number, because the mean of its divisors is an integer number (61332384).

Almost surely, 2631675472 is an apocalyptic number.

It is an amenable number.

631675472 is a deficient number, since it is larger than the sum of its proper divisors (594972208).

631675472 is a wasteful number, since it uses less digits than its factorization.

631675472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89570 (or 89564 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 631675472 is about 25133.1548357941. The cubic root of 631675472 is about 858.0211722959.

The spelling of 631675472 in words is "six hundred thirty-one million, six hundred seventy-five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 443 886 1772 3544 7088 89119 178238 356476 712952 1425904 39479717 78959434 157918868 315837736 631675472